O2 XDA Zest vs Samsung i640

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

• Weight

  XDA Zest: 45.5 g lighter

  XDA Zest:

  102.5 g

  i640:

  148 g

• Screen diagonal

  i640: 0.4 in smaller diagonal

  XDA Zest:

  2.8 in

  i640:

  2.4 in

• Height

  i640: 7.6 mm shorter

  XDA Zest:

  102 mm

  i640:

  94.4 mm

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. 1. XDA Zest

   Height:

   102 mm +7.6 mm versus i640

   Width:

   60.5 mm

   Depth:

   16.5 mm

2. 2. i640

   Height:

   94.4 mm

   Width:

   61 mm

   Depth:

   16.9 mm

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

1. 1. XDA Zest

   Screen diagonal:

   2.8 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   24.3 cm²

2. 2. i640

   Screen diagonal:

   2.4 in

   Aspect ratio (height:width):

   4:3

   Approximate rectangular screen area:

   17.8 cm²

XDA Zest has approximately 36.1% more rectangular screen area than i640.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

Battery capacity

Capacity is not battery life. No endurance test is implied.

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.